fix(user): update SQL migration scripts to use IF NOT EXISTS for column additions

initialize/migrate/database/02116_user_algo.up.sql

@@ -0,0 +1,3 @@
+ALTER TABLE `User`
+    ADD COLUMN IF NOT EXISTS `algo` VARCHAR(20) NOT NULL DEFAULT 'default' COMMENT 'Encryption Algorithm' AFTER `password`,
+    ADD COLUMN IF NOT EXISTS `salt` VARCHAR(20) NOT NULL DEFAULT 'default' COMMENT 'Password Salt' AFTER `algo`;